Patents by Inventor Christopher J. Stock

Christopher J. Stock has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Catalyst for simultaneous NO decomposition and CO oxidation under cycled operating conditions
    Patent number: 4839146
    Abstract: This invention relates to an automotive exhaust gas treatment catalyst composed of one or more noble metals dispersed on CeO.sub.2 -RE.sub.2 O.sub.3 carrier particles. The ceria-rare earth oxide carrier for the noble metal facilitates the simultaneous oxidation of CO and decomposition of NO. The catalyst is particularly useful when the air-fuel mixture to the automobile engine is continually cycled between fuel rich and fuel lean of stoichiometric proportions.
    Type: Grant
    Filed: April 15, 1987
    Date of Patent: June 13, 1989
    Assignee: General Motors Corporation
    Inventors: Byong K. Cho, Christopher J. Stock